Richard III

There is more than you may have ever wished to know about Richard III on his website:
http://www.r3.org/

As for the play and film with Ian McKellen. I haven't seen it but I love Ian McKellen and admire his work at the National Theatre, so I will have to catch up with it. Thanks for reminding me. There is an interesting interview with him at:
http://www.r3.org/mckellen/film/mckel1.html

The best introduction to RIII is to visit Middleham in North Yorkshire, his ancestral home.
http://www.rblanchard.com/middleham/history.html
The Northern Broadsides production that I saw in the castle grounds, performed in pure "Northern" was quite magical.

Like any play, see several productions and decide for yourself.